RT Book, Section A1 Jackson, Kevin P. A2 Papadakis, Maxine A. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. A2 Gandhi, Monica SR Print(0) ID 1209224092 T1 PSVT Due to Accessory AV Pathways (Preexcitation Syndromes) T2 Current Medical Diagnosis & Treatment 2025 YR 2025 FD 2025 PB McGraw-Hill Education PP New York, NY SN 9781266266232 LK accessmedicine.mhmedical.com/content.aspx?aid=1209224092 RD 2024/11/04 AB ESSENTIALS OF DIAGNOSISTwo classic features of Wolff-Parkinson-White (WPW) pattern on ECG are short PR interval and wide, slurred QRS complex due to manifest preexcitation (delta wave).Most patients with WPW pattern do not have clinical history of arrhythmia but have a higher risk of SCD due to the possibility of rapidly conducted atrial fibrillation through the accessory pathway.Risk factors for SCD with WPW include age younger than 20, history of tachycardia, and rapid conduction properties at electrophysiologic testing.